A Teacher's Accidental Lesson in How to Hurt a Career

If you're in the middle of a job search, or if you just landed a job, you've likely heard and read all sorts of advice about having a strong social media presence because it may help you get the job.

And you also may have heard how you could scuttle your shot at a job if an employer were to find something on a social media site that put you in a not-so-flattering light.

Presenting exhibit 1 in "How to damage your career by mouthing off on the web." A science teacher in Cohasset, MA, resigned last week after posting comments on Facebook that reportedly called residents of the town snobby and arrogant. She was also reported to have said she was "so not looking forward to another (school) year."

Oops! It looks like she knocked everyone from her employer to her employer's customers.

Why did this happen? She believed that only friends she approved of could view her Facebook page, The Boston Globe reported. She said she accepts full responsibility but is worried the remarks could ruin her career.